Pterodactyls, or, more correctly, pterodactyloids, are distinguished from basal pterosaurs by their reduced teeth, tail, and fifth toe. Pterodactyloid metacarpals (palm bones) were more elongated than those of earlier pterosaurs, which instead had elongated phalanges (finger bones). There are also proportional differences in the skull, neck, pelvis, and wing bones. Pterodactyloid genera include Pterodactylus, a Late Jurassic form from Germany with a wingspan ranging from 50 cm (20 inches) to well over 1 ... (100 of 219 words)